The Shaw Barrels PS90 5.7x28mm 10.4" M12x1 Left-Hand Thread Barrel is a purpose-built replacement barrel that brings the PS90 platform back to its original compact profile. Precision-machined from 4140 chrome-moly steel and finished in a durable black nitride/melonite treatment, it is designed to deliver consistent accuracy and long service life while maintaining a lightweight feel on the rifle.

This 10.4-inch threaded barrel is ideal for shooters converting a PS90 to an SBR configuration or upgrading a worn factory barrel. Chambered in 5.7x28mm with a 1:9" twist, it stabilizes a wide range of bullet weights and works seamlessly with factory-spec M12x1 left-hand muzzle devices or suppressor adapters. Whether you are setting up a compact range carbine or refining a dedicated training rifle, this barrel reflects Shaw Barrels’ reputation for careful machining and dependable performance.

Key Features:

• Manufacturer: Shaw Barrels
• Model: PS90FCCM105728
• Caliber: 5.7x28mm
• Barrel Length: 10.4 inches
• Thread Pattern: M12x1 left-hand
• Barrel Material: 4140 chrome-moly steel
• Barrel Finish: Black nitride / melonite
• Twist Rate: 1:9"